Not my project - found this courtesy of Hack-a-Day.
This free and open source software tool is designed to make it easy for individuals to keep track of both the routine maintenance needs of their vehicles, as well as keep track of any previous or upcoming repairs and upgrades.
Demo here: https://demo.lubelogger.com/Login/Index
User/pass: test/1234
You can use their public server if you want, otherwise you can spin up your own on a cheap/free VPS.